Abstract:Objective: To investigate the expressive characteristics of miR-497 and cyclin E1 (CCNE1) in non-small cell lung cancer (NSCLC) tissues, and to analyze the relationship between miR-497, CCNE1 and clinicopathological features and prognosis of patients. Methods: A total of 102 cases of NSCLC admitted to our hospital from February 2016 to December 2017 were selected. Surgical resection of cancerous tissue (NSCLC group) and paracancerous tissue (≥5 cm from the edge of tumor tissue) (paracancerous group) were selected. Real-time quantitative PCR (qRT-PCR) was used to detect the expression of miR-497 and CCNE1, and Pearson correlation was used to analyze the correlation between miR-497 and CCNE1. Postoperative follow-up was maintained, and Kaplan-Meier method was used to analyze the difference in survival rates among patients with different miR-497 and CCNE1 expression, and Cox proportional risk model was used to analyze the related factors affecting the prognosis of NSCLC patients. Results: The expression of miR-497 in NSCLC group was lower than that in paracancerous group (P<0.001), and the expression of CCNE1 was higher than that in paracancerous group (P<0.001). The expression of miR-497 and CCNE1 was correlated with tumor diameter, degree of differentiation and TNM stage (P<0.001). Pearson correlation analysis showed that miR-497 expression was negatively correlated with CCNE1 (r=-0.539,P<0.001). Kaplan-Meier survival curve analysis showed that the PFS and OS survival rates in the group with low miR-497 expression were lower than those in the group with high miR-497 expression (P<0.05), and the PFS and OS survival rates in the group with high CCNE1 expression were lower than those in the group with low CCNE1 expression (P<0.05). Cox proportional hazards regression analysis showed that TNM stage Ⅲ, miR - 497<0.56, CCNE1 acuity 1.05 were risk factors for poor prognosis of NSCLC patients (P<0.01). Conclusion: The expression of miR-497 is down-regulated and the expression of CCNE1 is up-regulated in NSCLC tissues. MiR-497 may be involved in malignant biological behavior and poor prognosis of NSCLC by negatively regulating the expression of CCNE1.
丁灵芝, 罗向军, 陈伟伟, 杨爱珍. miR-497 CCNE1在非小细胞肺癌组织中的表达及与预后的关系[J]. 河北医学, 2021, 27(6): 952-957.
DING Lingzhi, LUO Xiangjun, CHEN Weiwei, et al. Expression of MiR-497 and CCNE1 in Non-Small Cell Lung Cancer and Its Relationship with Prognosis. HeBei Med, 2021, 27(6): 952-957.
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